Home / 19,005.39-28,510.52-7,317.09

Finding the Fourth Proportional to 19,005.39, 28,510.52 and 7,317.09

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Solution

The fourth proportional to 19,005.39, 28,510.52 and 7,317.09 is: 10,976.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,005.39 : 28,510.52 = 7,317.09 : x
  2. Step 2: Convert to fraction form
    19,005.39/28,510.52 = 7,317.09/x
  3. Step 3: Cross multiply
    19,005.39x = 28,510.52 × 7,317.09
  4. Step 4: Simplify right side
    19,005.39x = 208,614,004.20
  5. Step 5: Solve for x
    x = 208,614,004.20/19,005.39
  6. Step 6: Final answer
    x = 10,976.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.